Red hat Crontab Time problem

I have a Red Hat Server , the problem is that crontab works in a different time that the time of the server.

For exampe date command gives me this :

17:41:02 EET 2007

so I setup a cron to run in 17:42

the cron never runs (I do check the /varlog/cron file).
but If I set the time of the cron with 8 hours difference ( 9:41 ) the cron will acctualy will acctually run at server's time 17:41 ...
The server's time is GMT+2 :